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lukranit [14]
3 years ago
8

3 sisters are each 2 years apart in age. The youngest sister is Emily, the middle sister is Samantha and the oldest sister is La

uren. Together their combined ages are 42. How old is each sister?
a. Define the variable(s).
b. Write an equation for this situation using one variable.
c. Solve the equation for the ages of the 3 sisters.
Mathematics
2 answers:
Ivenika [448]3 years ago
7 0
The oldest is 18 the youngest is 14
katovenus [111]3 years ago
3 0
Well the younger sister is 14 the middle is 16 and the oldest is 18
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A² + b² = c²
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Suppose researchers test 100 college students, whose ages range from 18 to 23. They also test 100 people at a nearby community c
prisoha [69]

Answer:

b. You would conclude that the differences in the average scores can be traced to differences in the working memory of the two groups.

Step-by-step explanation:

Though the average scores of the two sets could have lead to various conditions, but retentive ability deminishes with respect to an increase in age. With respect to the age of the elderly people involved, it is expected that some of them would not be able to retain information for a long period of time. Thus, their average score is 72%.

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3 years ago
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Helen [10]
Sum means add
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sergey [27]

Answer:

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